Effects of n-3 Polyunsaturated Fatty Acids & Antioxidants on Postprandial

Status Completed

Clinical Trial Summary

Diet has long been used as a way to provide enough nutrients to an individual in order to meet metabolic requirements. However, recent scientific advancements have suggested that beyond meeting nutrition needs, diet may also be health promoting through the modulation of various body functions. In a way, the role of nutrition has evolved from hunger satisfaction and maintenance of body integrity to the promotion of a state of well-being and prevention of important chronic diseases such as cancer, diabetes and cardiovascular disease (CVD). In recent years, n-3 polyunsaturated fatty acids (PUFA) have attracted much attention as consumption of a n-3 PUFA rich diet has been reported to reduce CVD risk. However, n-3 PUFA are also highly susceptible to free radical damage and therefore could be unable to fully exert their health benefits under an oxidative stress condition. The general objective of the present application is to investigate the mechanisms by which n-3 PUFA improve cardiovascular health in abdominal obesity and explore the potential of dietary antioxidants to modulate these effects in individuals at high risk of oxidative stress. For that purpose, we plan to study the changes in fasting and postprandial plasma lipoprotein-lipid levels, markers of lipid and lipoprotein oxidation, inflammation and endothelial dysfunction following 12 weeks of n-3 PUFA supplementation with or without low-calorie cranberry juice cocktail (as a source of antioxidants) in a group of 160 men. We feel that the present study will broaden our understanding of the physiological mechanisms underlying the beneficial effects of consuming unsaturated fatty acids and give further insights on the role of antioxidants in preserving and potentiating these cardiovascular health benefits.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00296595
Study type	Interventional
Source	Laval University
Contact
Status	Completed
Phase	Phase 2/Phase 3
Start date	February 2006
Completion date	December 2008

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Effects of n-3 Polyunsaturated Fatty Acids and Antioxidants on Postprandial Hyperlipidemia and Vascular Function in Men

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms